[meteorite-list] How to tell which iron is which?? II

From: Allan Treiman <treiman_at_meteoritecentral.com>
Date: Wed Oct 18 00:53:20 2006
Message-ID: <6CB8C9DB-A185-403A-AB83-E645F515B9BB_at_lpi.usra.edu>

Hi, List -

    Thanks very much for your suggestions, on and off list, about the
liquidation meteorites that might be CD. I saw the two masses today,
and they definitely are irons, and look a whole lot like Canyon Diablo.
One has a 2" long tubular hole through it! Both have spots of what looks
like caliche. They were wire-brushed and maybe oiled too, so their
surfaces are not quite natural.

     I'm going to do some quick chemical analyses of the rust and
the caliche, and compare them with same from a small sample of
(real) CD here.
     But I don't have any Odessa or Toluca for comparison. Could any
of you spare a bit of rust and sand or caliche off your Odessa or
Toluca?

    Thanks very much.

     Allan

Allan Treiman
Lunar and Planetary Institute
3600 Bay Area Boulevard
Houston TX 77058 USA

281-486-2117
treiman_at_lpi.usra.edu



On Oct 16, 2006, at 12:25 PM, Allan Treiman wrote:

> Hi, meteorite list -
>
> I've got a question for you. I've been approached for help in
> liquidation
> of an estate (in Texas), which has two iron masses labelled as
> meteorites.
> But no information on where they came from. Photos attached below.
>
> They look a lot like irons, and I'm comfortable with a Ni test
> to tell them
> from terrestrial iron.
>
> But -- any suggestions on how to tell which iron meteorite they
> might be?
> To my untrained eye, they look a lot like Canyon Diablo. Anyone had
> this
> type of question come up before?
>
> Thanks for your help.
>
> Allan
>
> <rpiper.jpg>
> <rpiper2.jpg>
> <rpiper3.jpg>
>
>
>
>
> Allan Treiman
> Lunar and Planetary Institute
> 3600 Bay Area Boulevard
> Houston TX 77058 USA
>
> 281-486-2117
> treiman_at_lpi.usra.edu
>
>
>

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